ARCHIVED REPORTS_FOURTH QUARTER AND ANNUAL 2010 SITE STATUS, REMEDIAL SUMMARY, AND GROUNDWATER MONITORING REPORT

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Table 7 Groundwater Analytical Data-Metals South Shore Parcels-Parcel 2A and Adjacent Areas West Weber Avenue and North Lincoln Street Stockton, California Hex- avalent Sample Date Al Sb As Ba Be Ca Cd Cr Cc Cu Pb K Mo Mn Na Ni Se Ag TI V Zn Hg Cr ID (mq/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) A Zone Wells-Areas 2A/26 and Adjacent Properties(cont.) MW-9(cont.) 2/8/07 --- <0.05 0.27 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 5/7/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/5/07 --- <0.05 0.24 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 10/8/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/24/08 --- <0.05 0.24 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 4/21/08 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/24/08 --- <0.015 0.26 --- <0.001 --- <0.001 <0.005 --- <0.005 <0.005 --- --- --- --- <0.005 <0.015 <0.005 <0.015 --- <0.01 <0.0005 --- 10/20/08 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/22/09 --- <0.05 0.28 --- <0.005 --- <0.01 <0.01 --- <0.01 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.001 --- <0.02 <0.0002 --- 4/20/09 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/30/09 --- <0.0050 0.24 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- 10/19/09 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/22/10 --- <0.0050 0.25 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- 4/19/10 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/22/10 --- <0.0050 0.23 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.012 <0.00020 --- 10/18/10 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 MW-10 10/18/96 --- <0.02 0.065 --- 0.004 --- <0.005 0.19 --- 0.22 0.05 --- --- --- --- 0.20 <0.004 0.006 <0.05 --- 0.24 <0.0002 --- 1/19/99 --- --- --- --- --- 152 --- --- --- --- --- <5.0 --- 2.56 224 --- --- --- --- --- --- --- --- 7/19/02 --- <0.06 0.065 <0.002 --- --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 <0.005 <0.005 <0.005 --- <0.02 <0.0002 --- 9/30/02 --- <0.05 0.050 <0.005 --- --- <0.01 <0.01 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.01 --- 0.056 <0.0002 --- 12/5/02 --- <0.015 0.0261 --- <0.001 --- <0.005 <0.005 --- <0.005 <0.01 --- --- --- --- 0.00517 <0.015 <0.015 <0.015 --- 0.0376 <0.0005 --- 3/5/03 --- <0.015 <0.015 --- <0.001 --- <0.005 <0.005 --- <0.005 <0.01 --- --- --- --- <0.005 <0.015 <0.005 <0.015 --- 0.0440 <0.0005 --- 5/8/03 --- <0.05 0.027 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.0005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 8/20/03 --- <0.05 0.035 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 ' <0.005 --- <0.02 <0.0002 --- 11/13/03 --- <0.015 <0.015 --- <0.001 --- <0.005 <0.005 --- <0.005 <0.01 --- --- --- --- <0.005 <0.015 <0.005 <0.015 --- 0.0825 <0.0005 --- 6/1/04 Not sampled due to SPH, Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 6/1/04 Not sampled due to SPH (Sheen) 12/10/04 Not sampled due to SPH 2/25/05 --- <0.05 0.025 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 5/25/05 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/24/05 Not sampled due to SPH 11/14/05 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/14/06 Not sampled due to SPH 5/17/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/14/06 Not sampled due to SPH 11/14/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/5/07 Not sampled due to SPH 5/7/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/3/07 Not sampled due to Sheen 10/8/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/21/08 Not sampled due to Sheen 4/21/08 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/21/08 Not sampled due to Sheen 10/20/08 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/19/09 Well abandoned due to Unocal Excavation 9 Stantec I:\Tidewater\TW Stockton(Parcel 2A-0415)\Tables\QMR Tables\2010\4Q10\20101117-Parcel2A(Tables 4,5,6,7)Historical GW Tables 4Q10.xls Page 6 of 45